Works fine.
Code:
rtmpdump -v -r "rtmp://d.cdn.msnbclive.eu/edge/msnbc_live" -W "http://msnbclive.eu/player.swf" | vlc -
RTMPDump v2.4 GIT-2012-11-09 (Compiled by KSV)
(c) 2010 Andrej Stepanchuk, Howard Chu, The Flvstreamer Team; license: GPL
WARNING: You haven't specified an output file (-o filename), using stdout
Connecting ...
INFO: Connected...
Starting Live Stream
INFO: Metadata:
INFO: author
INFO: copyright
INFO: description
INFO: keywords
INFO: rating
INFO: title
INFO: presetname Custom
INFO: creationdate Tue Jan 08 04:52:54 2013
INFO: videodevice 713x BDA Analog Capture
INFO: framerate 25.00
INFO: width 768.00
INFO: height 576.00
INFO: videocodecid avc1
INFO: videodatarate 550.00
INFO: avclevel 31.00
INFO: avcprofile 66.00
INFO: videokeyframe_frequency 5.00
INFO: audiodevice Line In (VIA High Definition Audio)
INFO: audiosamplerate 44100.00
INFO: audiochannels 2.00
INFO: audioinputvolume 79.00
INFO: audiocodecid .mp3
INFO: audiodatarate 112.00
1555.207 kB / 11.18 sec
ERROR: Download: Failed writing, exiting!